When NASA launch a spacecraft they say for example:- " T minus 2 minutes".
What does the T mean?
Many thanks.
2007-01-15 08:16:28 · 15 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
T minus 10 seconds (10 seconds to ( T )AKEOFF
http://spaceflightnow.com/pegasus/galex/status.html
2007-01-15 08:24:29 · answer #1 · answered by Anonymous · 0⤊ 3⤋
Time from lift off. T minus 2 minutes means 2 minutes until lift off. If the take off is scheduled for 1:00pm and it is 12:58pm (T) then it is T minus 1:00pm which is 2 minutes.
2007-01-15 08:23:54 · answer #2 · answered by lover_of_paints_&_quarter_horses 4 · 0⤊ 2⤋
Time
2007-01-19 00:22:33 · answer #3 · answered by manc1999 3 · 0⤊ 0⤋
T denotes time in this instant.
Negative T = Time before lift-off
Positive T = Time after lift-off (this counting goes on until this particular mission ends)
2007-01-15 21:18:03 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Shy Girl is right, and most of the others are wrong.
"T" means "time," as in "It's time, folks, let's do it."
So "T minus 20" means "20 seconds before time to do it."
In this case, "do it" means "energize the squibb," which is the electric igniter that lights the rocket engines.
T does not mean "take off."
2007-01-15 13:28:53 · answer #5 · answered by aviophage 7 · 0⤊ 2⤋
T means time
2007-01-19 08:18:47 · answer #6 · answered by andy b 3 · 0⤊ 0⤋
Take off i think.It would be silly to say b minus 2 minutes,meaning blast off.
2007-01-15 08:23:17 · answer #7 · answered by taxed till i die,and then some. 7 · 0⤊ 3⤋
TIME as in time from lift off.
2007-01-15 09:31:34 · answer #8 · answered by Anonymous · 1⤊ 0⤋
Time left before take off - so it stands for time...
2007-01-15 08:32:34 · answer #9 · answered by LaLa 1 · 1⤊ 1⤋
Time...from lift off.
2007-01-15 08:21:14 · answer #10 · answered by Anonymous · 2⤊ 1⤋